Q871. What is global execution context?
The global execution context is the default or first execution context that is created by the JavaScript engine before any code is executed(i.e, when the file first loads...
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Q872. How to create react class components without ES6?
If you don’t use ES6 then you may need to use the create-react-class module instead. For default props, you need to define getDefaultProps() as a function on the passed o...
Q873. What is function execution context?
Whenever a function is invoked, the JavaScript engine creates a different type of Execution Context known as a Function Execution Context (FEC) within the Global Executio...
Q874. Is it possible to use react without JSX?
Yes, JSX is not mandatory for using React. Actually it is convenient when you don’t want to set up compilation in your build environment. Each JSX element is just syntact...
Q875. What is debouncing?
Debouncing is a programming technique used to limit how often a function is executed. Specifically, it ensures that a function is only triggered after a certain amount of...
Q876. How do you create HOC using render props?
You can implement most higher-order components (HOC) using a regular component with a render prop. For example, if you would prefer to have a withMouse HOC instead of a c...
Q877. What is throttling?
Throttling is a programming technique used to control the rate at which a function is executed. When an event is triggered continuously—such as during window resizing, sc...
Q878. What is react scripts?
The `react-scripts` package is a set of scripts from the create-react-app starter pack which helps you kick off projects without configuring. The `react-scripts start` co...
Q879. What is optional chaining?
According to MDN official docs, the optional chaining operator (?.) permits reading the value of a property located deep within a chain of connected objects without havin...
Q880. What are the features of create react app?
Below are the list of some of the features provided by create react app. 1. React, JSX, ES6, Typescript and Flow syntax support. 2. Autoprefixed CSS 3. CSS Reset/Normaliz...